Malicious PDF — malware analysis report

Static analysis result for SHA-256 47658ce2231c57d3…

MALICIOUS

PDF

65.8 KB Created: 2020-08-08 17:47:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 497d2603d4442bc73b9822f94932da8a SHA-1: 991cdac2537e836c9fe36c1cdb26714ce8ea4103 SHA-256: 47658ce2231c57d39de3060e1837f2377a74356cb9738b46d310c4e2e1b8aa8c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link farm designed to appear as search results, with one prominent link leading to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Mahabharatham full story in telugu pdf download' and the malicious URL, indicating a lure to trick users into clicking the link. The presence of numerous external PDF links further supports the SEO poisoning tactic.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/wb?keyword=mahabharatham%20full%20story%20in%20telugu%20pdf%20download
    • http://files.cwpdc.com/uploads/1/3/2/7/132712322/d9e304d6.pdf
    • http://files.blueridgestitches.com/uploads/1/3/0/7/130738614/2623298.pdf
    • http://files.toughbookrescue.com/uploads/1/3/1/4/131452904/padesugomaxoji.pdf
    • https://cdn.shopify.com/s/files/1/0434/3077/2901/files/71235904337.pdf
    • https://cdn.shopify.com/s/files/1/0438/2579/1138/files/fekizogewigitakitij.pdf
    • https://cdn.shopify.com/s/files/1/0427/5725/9420/files/8465691018.pdf
    • https://cdn.shopify.com/s/files/1/0428/7938/5756/files/67432151641.pdf
    • https://cdn.shopify.com/s/files/1/0432/3390/2760/files/kawuko.pdf
    • https://cdn.shopify.com/s/files/1/0439/1642/7419/files/sorusatumobixoviwi.pdf
    • https://cdn.shopify.com/s/files/1/0438/1035/7405/files/aluminum_properties.pdf
    • https://cdn.shopify.com/s/files/1/0438/1832/0034/files/84084707894.pdf
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/xanupurotojokakafoxesaxid.pdf
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/11988068269.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000630b.bin
ecbb82647a846931fb3e7fcfb440a9a9f46ccd37fa4f2c8ffeaea7fcf0d4a797
pdf-font-stream PDF embedded font (sfnt) at offset 0x630B 5792 bytes
font_01_sfnt_off000076bb.bin
f596efea8bd0a08bc06d76b60f8df5ffd3facc13535cd8286c15d251f650218c
pdf-font-stream PDF embedded font (sfnt) at offset 0x76BB 52632 bytes
font_02_sfnt_off0000d6df.bin
85541e2065feb415d69c749ffebacdc637c0ce817f3f7e692d7bda1570a4e768
pdf-font-stream PDF embedded font (sfnt) at offset 0xD6DF 9288 bytes